Methods to using same front speakers for HTS and 2 channel setups

I started off with a simple home theater receiver. Soon after I designated the receiver to function only as a pre-amp and bought a separate 5-channel amp.

then soon after, I set up a whole new 2 channel system working with separate pre-amp and amp. I have 5 speakers for the HTS and another 2 for the 2-channel setup. Mind you both systems are cluttering my modest-sized living room.

Here is what I need help with. I want to use the speakers from the 2-channel system also for the HTS. The issue is that I want to use my best speakers for HTS but I don't want to listen to my 2-channel stuff through the receiver.

I'm sure this is a common dilemma. Help me find a satisfying solution. Be creative if you have to.